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Crane Buffer

Crane buffer is made of NDI polyurethane micro cellular elastomer. It is installed on the  cranes and trolleys for absorbing the impact  when moving with outstanding energy absorbing performance.
Crane buffer is installed on cranes and trolleys to absorb the impact and eliminate damage. Polyurethane micro cellular crane buffer has a unique microporous structure, excellent vibration absorbing energy, superior compression deformation and minimal lateral expansion, lightweight design. Crane buffer is made of microcellular polyurethane elastomer. It has high wear resistance, high load capacity, and rebound resetting ability. It can withstand the high-speed and severe impact of the crane during working, absorb shock, protect crane equipment, and lifting objects from collision damage.

Almost all cranes utilize some sort of industrial buffer or bumper for the purpose of eliminating or minimizing damage. Protection of this type is required for three major types of collisions:
Crane to Crane
Crane to Building
Trolley to Bridge End Stop